Xakamaynta eexda IQ Modulator Is haysta oo toos ah Xakamaynta Eexda
Muuqaal
• Waxay bixisaa saddex eex oo loogu talagalay modulators IQ qaabaynta qaab madax banaan:
•QPSK, QAM, OFDM, SSB la xaqiijiyay
Ku xidh oo ciyaar:
Looma baahna hagaajin gacanta wax kasta oo toos ah
• I, Q hubka: xakamaynta qaababka ugu sarreeya iyo kuwa null saamiga sare ee baabi'inta: 50dB max1
• P cudud: kantaroolka Q+ iyo qaababka Q Saxnaanta: ± 2◦
• Muuqaalka hoose: 40mm(W) × 28mm(D) × 8mm(H)
Xasilooni sare: hirgalin buuxda oo dhijitaal ah Waa sahlan tahay in la isticmaalo:
• Hawlgalka gacanta oo leh mini jumper hawlo OEM dabacsanaan leh iyada oo loo marayo UART2
Laba qaab oo lagu bixiyo danab eexasho: a.Automatic Bias Control b. Isticmaalaha oo qeexan danab
Codsiga
•LiNbO3 iyo IQmodulators kale
•QPSK, QAM, OFDM, SSB iyo iwm
• Gudbinta isku xidhan
Waxqabadka
Jaantuska 1. Koox-kooxeed (la'aanteed)
Jaantuska 2. Kooxda QPSK (oo leh kontaroole
Jaantuska 3. Qaabka QPSK-Isha
Jaantus 5. 16-QAM Qaabka Xiddigaha
Jaantuska 4. QPSK Spectrum
Jaantus 6. 16-QAM Spectrum
Tilmaamaha
| Halbeegga | Min | Nooca | Max | Unug |
| Waxqabadka Xakamaynta | ||||
| I, Q hubka waa la maamulaaNul (Ugu yar) amaUgu sarreeya (ugu badnaan) dhibic | ||||
| Saamiga dabar goynta | MER1 | 50 | dB | |
| Gacanta P gacanta ayaa lagu maamulaaQ+(midig afar gees) amaS-( bidix afar gees) dhibic | ||||
| Saxnimada Quad | -2 | +2 | shahaado2 | |
| Waqtiga xasilinta | 15 | 20 | 25 | s |
| Koronto | ||||
| danab koronto togan | +14.5 | +15 | +15.5 | V |
| Awoodda hadda jirta | 20 | 30 | mA | |
| danab koronto taban | -15.5 | -15 | -14.5 | V |
| Quwadda taban | 8 | 15 | mA | |
| Kala duwanaanshaha danabka soo baxay | -14.5 | +14.5 | V | |
| Baaxadda weyn | 1%Vπ | V | ||
| Muuqaal | ||||
| Input awoodda indhaha3 | -30 | -8 | dBm | |
| Hirarka hirarka dhererka | 1100 | 1650 | nm | |
1. MER waxaa loola jeedaa Modulator Extinction Ratio. Saamiga dabar goynta la gaarey waa sida caadiga ah saamiga baabi'inta modulator-ka ee lagu qeexay xaashida xogta modulator-ka.
2. Fadlan la soco in galinta awooda indhaha aanu u dhigmin awooda indhaha ee barta eexda la doortay. Waxay tilmaamaysaa awoodda indhaha ee ugu badan ee modulator-ku u dhoofin karo kantaroolaha marka korantada eexdu u dhexayso -Vπ ilaa +Vπ .
Interface User
Sawirka5. Golaha
| Kooxda | Hawlgalka | Sharaxaad |
| Dib u dajin | Geli jumper oo soo bixi 1 ilbiriqsi ka dib | Dib u dajin maamulaha |
| Awood | Isha tamarta ee xakamaynta eexda | V- wuxuu isku xiraa korantada taban ee korontada |
| V+ waxa ay ku xidhaa korantada togan ee korontada | ||
| Dekadda dhexe waxay ku xidhaa korantada dhulka | ||
| Polar1 | PLRI: Geli ama la bixi boodboodka | ma jiro jumper: Qaabka null; oo leh jumper: qaabka ugu sarreeya |
| PLRQ: Geli ama la soo bixi boodboodka | ma jiro jumper: Qaabka null; oo leh jumper: qaabka ugu sarreeya | |
| PLRP: Geli ama la bixi boodada | ma jiro jumper: qaabka Q+; leh jumper: Q- qaab | |
| LED | Si joogto ah u daaran | Ka shaqaynta xaalad xasiloon |
| Dab-damis ama off-0.2s kasta | Hagaajinta xogta iyo raadinta barta xakamaynta | |
| Dab-damis ama bannaan-bax 1s kasta | Awoodda aragga wax-soo-gelinta aad bay u liidataa | |
| Dab-damis ama bannaan-bax 3diis kasta | Awoodda aragga wax-soo-gelinta aad bay u xoog badan tahay | |
| PD2 | Ku xidh photodiode-ka | Dekedda PD waxay isku xirtaa Cathode ee photodiode |
| Dekedda GND waxay isku xirtaa Anode ee photodiode | ||
| Eexda Voltages | Gudaha, Ip: Dabciga eexda ee I cududda | Ip: Dhinaca wanaagsan; Gudaha: Dhinac xun ama dhulka |
| Qn, Qp: danab eexda ee gacanta Q | Qp: Dhinaca wanaagsan; Qn: Dhinaca xun ama dhulka | |
| Pn, Pp: Dabciga eexda ee gacanta P | Pp: Dhinaca wanaagsan; Pn: Dhinaca xun ama dhulka | |
| UART | Ku shaqee kontaroolaha UART | 3.3: 3.3V danab tixraac ah |
| GND: Dhulka | ||
| RX: Qaadashada kontaroolaha | ||
| TX: Gudbinta xakamaynta |
1 Polar waxay kuxirantahay nidaamka RF signal. Marka aysan jirin calaamadda RF ee nidaamka, cirifku waa inuu noqdaa mid togan. Marka signalka RF uu leeyahay baaxad weyn oo ka weyn heer cayiman, dabaysha ayaa ka beddeli doonta togan una beddelmi doonta taban. Waqtigan xaadirka ah, Null point iyo dhibicda ugu sarreysa ayaa midba midka kale isweydaarsan doona. Q+ dhibic iyo Q- dhibic sidoo kale way isweydaarsanayaan.
si toos ah iyada oo aan la beddelin dhibcaha hawlgalka.
2Kaliya hal doorasho ayaa la doortaa inta u dhaxaysa isticmaalka kontoroolka photodiode ama isticmaalka modulator photodiode. Waxaa lagu talinayaa in loo isticmaalo kontoroolka photodiode ee tijaabooyinka shaybaadhka laba sababood dartood. Marka hore, kontaroolaha photodiode ayaa xaqiijiyay tayada. Marka labaad, way sahlan tahay in la hagaajiyo xoogga iftiinka wax gelinta. Haddii la isticmaalayo modulator's photodiode gudaha, fadlan hubi in hadda soo-saarka photodiode uu si adag ula siman yahay awoodda wax-gelinta.
Rofea Optoelectronics waxay bixisaa khadka wax soo saarka ee modulators Electro-optic, modulators wajiga, modulator xoojinta, sawirqaadayaasha, ilaha iftiinka laser, DFB lasers, amplifiers indhaha, EDFA, laser SLD, modulation QPSK, laser Pulse, Light detector, sawir-qaade dheellitiran, darawalka laser. , Fiber optic amplifier, Mitirka awoodda indhaha, Laser Broadband, Laser Tunable, indhaha, Diode darawalka Laser, Fiber cod-weyni. Waxaan sidoo kale siinaa wax-bedelayaal badan oo gaar ah oo loogu talagalay habeynta, sida 1*4 modulators wejiga array, Vpi aadka u hooseeya, iyo modulators saamiga baabi'inta aadka u sarreeya, oo inta badan lagu isticmaalo jaamacadaha iyo machadyada.
Waxaan rajeyneynaa in alaabtayadu ay ku caawin doonaan adiga iyo cilmi-baaristaada.
